Home / 347,738.60-521,607.90-223,322.60

Finding the Fourth Proportional to 347,738.60, 521,607.90 and 223,322.60

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Solution

The fourth proportional to 347,738.60, 521,607.90 and 223,322.60 is: 334,983.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,738.60 : 521,607.90 = 223,322.60 : x
  2. Step 2: Convert to fraction form
    347,738.60/521,607.90 = 223,322.60/x
  3. Step 3: Cross multiply
    347,738.60x = 521,607.90 × 223,322.60
  4. Step 4: Simplify right side
    347,738.60x = 116,486,832,408.54
  5. Step 5: Solve for x
    x = 116,486,832,408.54/347,738.60
  6. Step 6: Final answer
    x = 334,983.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.